let me play senator murkowski's statement. >> i think you are seeing a change in attitude, a change in tolerance, i guess, and an acceptance that what marriage should truly be about is a lasting, loving, committed relationship with respect to the individual. >> being very cautious, going there but not really getting there. senator bob portman is still the only republican in the senate who is actually endorsed gay marriage. >> yeah. >> compared to 46 democrats, isn't it clear who is on the right side here? >> oh, yeah. the partisan lines here could not be clearer. we know as of this moment there are two coalitions in american political life. one is increasingly uniformly in favor of marriage equality and one is mostly against marriage equality. so this does breakdown among partisan lines. again, it's very interesting to me that she is being as careful as she is but she's still trying to step out of it and i think what you're seeing is the same thing is happening on immigration, which is the elites of the republican party recognize that there's a political price that they are paying for